  <div class="card1" *ngIf="this.nodes.length>0">
      <div class="flow-nodes" *ngFor="let node of nodes; let i = index">
        <div class="node">
          <div class="text" *ngIf="i==0">
            <span>首序</span>
          </div>
          <div class="text" *ngIf="i==nodes.length-1&&i!=0">
            <span>末序</span>
          </div>
          <app-process-node [delete]="false" [details]="true" [node]="node">
          </app-process-node>

        </div>
        <div class="puls-item" *ngIf="i < nodes.length - 1">
          <div class="long-arrow"></div>
        </div>
      </div>
  </div>

<div class="card1" *ngIf="this.nodes.length==0">
  <div class="flow-nodes">
    <h3>未配置工艺路线</h3>
  </div>
</div>
